CONCENTRATION

The ability to concentrate decreases with a lack of water.
Water is one of the most effective and simple tools to help you be efficient and productive at work. The human brain tissue consists of 85% water and dehydration can result in headaches, poor concentration and even reduced short-term memory.

Your ability to perform arithmetic and the rapidity of your psychomotor skills can also be reduced. This is due to the fact that dehydration causes the level of energy production in the brain to decrease. For more information about water and your mental performance, visit 'Your Experts'.